AA

Epidemiology

Syringomyelia occurs in approximately 2% of individuals with SCI (Klekamp & Samii 2002). Syringomyelia found at autopsy has a 22% higher incidence than those presenting clinically (Vannemreddy et al. 2002). No relationship has been reported between the level of SCI and the likelihood of developing syringomyelia. Incidence rates are similar in individuals with either tetraplegia or paraplegia (Brodbelt & Stoodley 2003; Klekamp & Samii 2002; Ko et al. 2012). However, an increased risk of post-traumatic syringomyelia has been reported in complete SCI individuals (Vannemreddy et al. 2002; Kramer & Levine 1997). Lyons et al. (1987) reported that the development of syringomyelia occurred after a shorter interval in individuals with incomplete SCI than those with complete SCI; although, other studies have found no such relationship (El Masry & Biyani 1996; Ko et al. 2012; Vernon et al. 1982).